Hindus worship the sun god as night falls during Chhath Puja

An Indian Hindu devotee prostrates himself as his wife and children walk behind him as part of rituals at sunset near the holy Yamuna River during the Chhath Puja festival in New Delhi, India, on Nov. 19.

Vivek Prakash / Reuters

Hindu devotees pray while standing in the waters of the Arabian Sea as they worship the sun god during the Hindu religious festival "Chhath Puja" in Mumbai, on Nov. 19. Hindu devotees worship the sun god and fast all day for the betterment of their family and society during the festival.

Aftab Alam Siddiqui / AP

Hindu devotees take part in worship on the banks of the River Ganges river during Chhath festival, an ancient Hindu festival, rituals are performed to thank the sun god for sustaining life on earth, in Patna, India, on Nov. 19.

Hindu devotees worship the Sun god during the Hindu religious festival "Chhat Puja" at sunset on Monday. Hindu devotees worship the Sun god and fast all day for the betterment of their family and society during the festival.

-- Reuters

Jaipal Singh / EPA

An Indian devotee lights earthen lamps as she performs rituals in front of the setting sun at the sacred Tawi river during the Chhath festival in Jammu, the winter capital of Kashmir, India, on Nov. 19.

Sanjay Kanojia / AFP - Getty Images

Hindu devotees perform religious rituals as they offer prayers to the sun god at Sangam during Chhath festival in Allahabad on Nov. 19. Devotees pay obeisance to both the rising and the setting sun in the Chhath festival when people express their thanks and seek the blessings of the forces of nature, mainly the sun and river.

Tsering Topgyal / AP

Indian Hindu devotees offer prayers to the sun god on the occasion of Chhath Puja festival at Yamuna river in New Delhi, India, on Nov. 19. On Chhath, an ancient Hindu festival, rituals are performed to thank the sun god for sustaining life on earth. The banner reads as "Warning, deep water ahead".

Vivek Prakash / Reuters

A Hindu devotee holds a firework in his hand as he worships the sun god during the Hindu religious festival "Chhath Puja" in Mumbai, on Nov. 19.